BSA-2016-209

Brocade Security Advisory ID

BSA-2016-209

Initial Publication Date

01/06/2017

Last Updated

01/06/2017

Revision

1.0: Final

Risk Impact

High

Workaround

Yes

Component

Web UI

Affected CVE

CVE-2016-8201

CVSS Score

7.5

Summary

A CSRF vulnerability in Brocade Virtual Traffic Manager versions released prior to and including 11.0, could allow an attacker to trick a logged-in user into making administrative changes on the traffic manager cluster.

Affected Products

Product Current Assessment
Brocade Virtual Traffic Manager Impacted: Fixed in 11.1, 10.4r1, 9.9r2, and later releases.

Products Confirmed Not Vulnerable

No other Brocade products are currently known to be affected by this vulnerability.

Solution

Brocade strongly recommends that all customers running the impacted version(s) install the patch.

Workaround

Minimizing exposure to this vulnerability can be done by the following means:

  • Reducing the amount of time an administrator is logged into the web user interface by actively logging out at the end of each administration session.
  • Ensuring the permissions for each administrator account are reduced to the minimal set required in line with the principle of least privilege.
  • Avoiding using any untrusted service/system/network while logged in as an administrator via the web user interface.

A broader workaround is to prevent access to untrusted service/system/network while using the web user interface, potentially by partitioning and isolating the management network. To restrict administrative access to only be available via a single IP address, see the bindip configuration setting.

Other administrative interfaces, specifically the REST API, SOAP API and zcli utility, are not impacted by this vulnerability and can be used to perform a wide range of administrative operations.

Credit

Brocade thanks Sven Schleier of Vantage Point Security for reporting this vulnerability.

Brocade Revision History

Version Change Date
1.0 Initial Publication January 6, 2017

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.